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@ -4,11 +4,6 @@
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package chapter_heap
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import (
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"container/heap"
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"fmt"
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)
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// Go 语言中可以通过实现 heap.Interface 来构建整数大顶堆
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// 实现 heap.Interface 需要同时实现 sort.Interface
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type intHeap []any
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@ -48,38 +43,3 @@ func (h *intHeap) Swap(i, j int) {
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func (h *intHeap) Top() any {
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return (*h)[0]
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}
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/* Driver Code */
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func main() {
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/* 初始化堆 */
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// 初始化大顶堆
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maxHeap := &intHeap{}
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heap.Init(maxHeap)
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/* 元素入堆 */
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// 调用 heap.Interface 的方法,来添加元素
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heap.Push(maxHeap, 1)
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heap.Push(maxHeap, 3)
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heap.Push(maxHeap, 2)
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heap.Push(maxHeap, 4)
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heap.Push(maxHeap, 5)
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/* 获取堆顶元素 */
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top := maxHeap.Top()
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fmt.Printf("堆顶元素为 %d\n", top)
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/* 堆顶元素出堆 */
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// 调用 heap.Interface 的方法,来移除元素
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heap.Pop(maxHeap)
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heap.Pop(maxHeap)
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heap.Pop(maxHeap)
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heap.Pop(maxHeap)
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heap.Pop(maxHeap)
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/* 获取堆大小 */
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size := len(*maxHeap)
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fmt.Printf("堆元素数量为 %d\n", size)
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/* 判断堆是否为空 */
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isEmpty := len(*maxHeap) == 0
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fmt.Printf("堆是否为空 %t\n", isEmpty)
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}
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